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Colour Index Code
PY41
Naples Yellow
- Chemistry
- Lead antimonate
- Origin
- Synthetic.
- History
- A historic yellow used since antiquity; toxic and now rare in genuine form.
- Toxicity
- Toxic (lead).
Naples Yellow (PY41) is Lead antimonate.
- Lightfastness
- Excellent
- Toxicity
- Contains toxic pigment
PY41: Questions & Answers
What is PY41?
PY41 (Naples Yellow) is Lead antimonate. Synthetic..
What is the chemistry of PY41?
PY41 is Lead antimonate.
Is PY41 toxic?
Toxic (lead).
Is PY41 lightfast?
In the Michael Harding range, colours using PY41 are rated excellent for lightfastness.
Which Michael Harding colours use PY41?
PY41 appears in 4 Michael Harding colours: Lead Tin Yellow Light, Lead Tin Yellow Lemon, Genuine Naples Yellow Light, Genuine Naples Yellow Dark.
Michael Harding colours using PY41
4 colours across both rangesLightfastness: Not testedContains toxic pigmentOil Colours containing PY41
4 colours
No. 512 Lead Tin Yellow Light
Series 5
OpaqueFastCoolToxicⓋ Vegan
- Pigment
- PY41
- Type
- Inorganic
- Lightfastness
- Not tested
- Oil Content
- Very Low
- Tint Power
- Average

No. 514 Lead Tin Yellow Lemon
Series 5
OpaqueFastCoolToxicⓋ Vegan
- Pigment
- PY41
- Type
- Inorganic
- Lightfastness
- Excellent
- Oil Content
- Very Low
- Tint Power
- Average
Watercolours containing PY41
0 coloursNo Michael Harding watercolour colours currently use PY41.
| Colour | Medium | Transparency | Lightfastness | Granulation |
|---|---|---|---|---|
| Lead Tin Yellow Light No. 512 | Oil | Opaque | Not tested | — |
| Lead Tin Yellow Lemon No. 514 | Oil | Opaque | Excellent | — |
| Genuine Naples Yellow Light No. 605 | Oil | Opaque | Excellent | — |
| Genuine Naples Yellow Dark No. 606 | Oil | Opaque | Excellent | — |
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